Foldable container



, Dec. 15., V1942. s.I Avi-:RYv AErm. n

FOLDABLECONTAINERy Fild Nov. 19. 1940 Iig?? UNITED i y ,StetsonrfA'verHolliston, andkhauncey A. Melrose, Mass.,` assgnorsfto La .TourafixieCof feeCo., Bost n, Mass., Va corporation Achusetts r ApplicationNovember 19, 1940,7.seriaiin 66,252 I j ,4 v4 claims.' (ci. rgesport) vOur present invention relates to open mouthed v peredJ-as show-n; yand`isaccordingly of., greater containers of paper. or like foldable stockvand "length thantheifwalll. f The edge ofthei'w'allsl morefparticularlyto ythe sealing of such conand oftheftabportion liisgenerally-'formedwith tainers to protect their contents against Vdeteserrationsl. y ti is rioration and to ensure that-they may be'readily 5 In accordance witvtheiembodimnt flour inopened Without lossl 1 i 1 I x "Y Vention s hOWnin' after the While ourinventionmay be usedv in packag- B is filled witha.predeterminellwelghtiof coilee, ing many products, its novel featuresand advanfor example?thefiwallsl andxzare'foldedadjacent tagesmay bewellillustrated by considering probthe mouth of the container along atransverse lems attendant the packaging 0f, ofee Vin. Such I0.lner'lndcated at 5 t0 bring the Over-fOldQd pl containers as paper bags,envelopes, and the like. Y l of the'shorter wall I in a position'topartially After such packages have been lled with a preoverlie ftheover-folded part 2* ofthe longer wall termined weight-of coffee, theyare-tightly closed. 2. As shown in Fig. 3, this fold closes the upperOne of the common objections to sealing the walls part of the containersufliciently to prevent coffee together by an adhesive is that coieeparticles 1 5 particlesfrom working into a position where theyV becomelodged adjacent the seal and when the would be spilled when the `sealwas broken.

' container is opened, generally by tearing the walls The over-foldedpart 2" of the wall 2 is then below the seal, a considerable quantity ofcoffee is folded transversely preferably adjacent the base spilled. ofthe tab portion 3, against the over-folded por- Our present inventionhas for its purpose the so tion l,a of the shorter wall I to which it issealed Ymaking of such otherwise acceptable containers f in any desiredway. ForApurposes of illustrating satisfactory in use. We accomplishthis result by a suitable seal`,'we haveindicated in-Fig. 1 a providingatight seal protecting the contents and coating of suitable adhesivecarried by the vtait having the dual advantage of being easily openedportion 3 and that portion of the wall l that while preventing the wasteof the contents of the g5 constitutes the over-folded part l* to ensuretheir package. registry. l Preferably the coatings 6 terminate Weaccomplish this result, in accordance with well inwardlyof the sides ofthe wall l and the our invention, by utilizing a container having tabportion 3 to minimize the possibility of tearfoldable walls, one ofwhich is longer than the` ing the paper when the containers are opened.other by reason of a tab or tab portion. The :i0 It is desirable,however, that thefadhesive be walls are then folded adjacent the mouthand the light by which term we mean that while it must l tab or tabportion is folded against the foldedtightly seal the mouth of thecontainer, it must over part of the other wall to which it is unitedyield readily to avoid tearing the stock from'which by adhesive to sealthe container with the tabY the container is made. The use of a. lightseal end disposed for engagement so that it may be 35v is possiblebecause the r'st fold effectively prepulled to release the seal to openthe container. vents coiee or like particles from working into In theaccompanying drawing, we have illustheover-folded part andthe pressureof the con- -trated an embodiment of our invention to illustents is notexerted against the seal. trate its novel features and advantages. Inthe In accordance with our invention, the tab 3 exdrawing: Y f 40 tendsbeyond the end of the package established Fig. 1 is a fragmentary frontview of a typical by the'rst fold, to be readily engageablve whenpackage, K the container is to be opened.` When the tab 3' Fig. 2 is aview similar to Fig. `1 but showing is pulled, the seal between the tab3.and the overthe package closed in accordance with our invenfolded partI a iscleanly broken as the' parts il non, 45 andZ are unfolded as shownby a comparison Fig. 3 -is a fragmentary enlarged vertical secof Figs. 3and 4. tion along the 1ines3-3, of Fig. 2, and We are thus Vable toprovide, in accordance Fig. 4 isa similar section along the lines 4 4,with-.our invention, in a container of low cost, a of Fig. 1. Y tightseal thatmay be easily broken without loss We have shown in the drawing,Vas indicative `50 of the contents. y Y t of the type of container orpackage with which What wetherefore claim and desire to secure we areconcerned, an' open mouth bag or envelopeYV f by Letters Patent is: B ofpaper or like foldable stock having a front 1. Apackage of the bag typecomprising -arbag wall l anda back wall 2. The back Wall 2 C011- havingfront and rear walls, the top portion of ventionally includes a tabPOItiOn 3, generally ta- 515 therear wall extending beyond the top ofthe against the downwardly folded part of the Vshorter wall, and meanssecuring the upwardly folded longer wall to the face of the downwardlyfolded part of the shorter wall to maintain the mouth of the bag closed,and the top edge of the tab being exposed to be gripped and pulled torelease the seal and to open the mouth of the package.

wardly folded portion of said front wall to maintain the mouth of thepackage closed, said tab projecting above said fold line to be grippedand pulled to release said fastening means and to open the mouth of thepackage. f Y' 2. A package as set forth in claim 1 in which thefastening means uniting the tab with the rearwardly and downwardlyfolded portion of the front wall comprises an adhesive extending trans-4versely of said walls but spaced inwardly of the edges thereof.

3. A package of the bag type comprising a bag V having front and rearwalls, the top portion of one wall extending beyond-the top of the otherwall and constituting a tab, said walls being folded together downwardlywith the shorter wall on the outer side vof the fold along a line'belowthe upper edge of the shorter wall to close the mouth of the bag, thelonger wall being upwardly folded 4. A package of the bag typecomprising a bag having front and rear walls, the top portion of Vonewall extending beyond the top of the other 1 wall andr constituting atab, fastening means comprisving a coating of adhesive on the innersurface of the tab a substantial distance below its top and on the outersurface of the shorter wall, said walls being folded togetherdownwardlsr with the shorter wall on the outer side of the fold along aline below the upper edge of the `shorter wall to close the mouth of thebag, the longer wall being upwardly folded to bring its coating ofadhesive against the coating of adhesive on the shorter wall thereby toestablish arseal between the walls to maintain the mouth ofthe bagclosed, andthe top edge of the tab being exposed to be gripped andpulled to release the seal and to open the mouth of the package. l y

, STETSON AVERY.

CHAUNCEY A. HAIL.

